I. Introduction T HE STABILITY of the “milieu interieur” was first recognized by Claude
Bernard (1), and this concept was extended by Walter Cannon (2), who coined the term …

Besides the dopaminergic (DA-ergic) neurons possessing the whole set of enzymes of DA
synthesis from l-tyrosine and the DA membrane transporter (DAT), the neurons partly …

The maintaining of homeostasis in the organism in response to a variable environment is
provided by the highly hierarchic neuroendocrine-immune system. The crucial component of …

The studies described here were carried out in the Neuroregulation Group at the
Department of Physiology of the University of Leiden. Over the last decade this group has, in …

The existence of an activatable dopamine system within the hypothalamic suprachiasmatic
nuclei (SCN), the site of a biological clock, was investigated in rats during fetal life. In situ …

A few studies have addressed the early development of catecholaminergic (CA) cell
populations in the avian brain (Yurkewicz et al., 1981; Guglielmone & Panzica, 1984, 1985; …

In addition to catecholaminergic neurons possessing all the enzymes of catecholamine
synthesis and the specific membrane transporters, neurons partly expressing the …

Most of the studies on neurochemical mapping, connectivity, and physiology in the
hypothalamic region were carried out in rats and under the columnar morphologic paradigm …

Prolonged exposure to cannabinoids from early development until weaning markedly affects
the ontogeny of the neuronal system, with changes that are evident at immature and early …

There are numerous sites in the nervous system where steroid hormones dramatically
influence development. Increasing interest in mechanisms in neural development is …